When using the migration tool to migrate a site on frontier, rewrite all links...

When using the migration tool to migrate a site on frontier, rewrite all links ending to some/path/index.shtml, etc to just some/path/

git-svn-id: file:///tmp/wdn_thm_drupal/trunk@290 20a16fea-79d4-4915-8869-1ea9d5ebf173